import router from './router';
import store from './store';
import { Message } from 'element-ui';
import NProgress from 'nprogress';
import 'nprogress/nprogress.css';
import { getToken } from '@/utils/auth';
import { isPathMatch } from '@/utils/validate';
import { isRelogin } from '@/utils/request';

NProgress.configure({ showSpinner: false });

const whiteList = ['/login', '/register'];

const isWhiteList = (path) => {
  return whiteList.some(pattern => isPathMatch(pattern, path));
};

router.beforeEach((to, from, next) => {
  NProgress.start();
  if (getToken()) {
    to.meta.title && store.dispatch('settings/setTitle', to.meta.title);
    /* has token*/
    if (to.path === '/login') {
      next({ path: '/' });
      NProgress.done();
    } else if (isWhiteList(to.path)) {
      next();
    } else {
      if (store.getters.roles.length === 0) {
        isRelogin.show = true;
        // 判断当前用户是否已拉取完user_info信息
        store.dispatch('getInfoAction').then(() => {
          isRelogin.show = false;
          store.dispatch('GenerateRoutes').then(accessRoutes => {
            // 根据roles权限生成可访问的路由表
            router.addRoutes(accessRoutes); // 动态添加可访问路由表
            next({ ...to, replace: true }); // hack方法 确保addRoutes已完成
          });
        }).catch(err => {
          store.dispatch('logOutAction').then(() => {
            Message.error(err);
            next({ path: '/' });
          });
        });
      } else {
        next();
      };
    }
  } else {
    // 没有token
    if (isWhiteList(to.path)) {
      // 在免登录白名单，直接进入
      next();
    } else {
      next(`/login?redirect=${encodeURIComponent(to.fullPath)}`); // 否则全部重定向到登录页
      NProgress.done();
    };
  }
});

router.afterEach(() => {
  NProgress.done();
});
